Is my Mobirise version hosed?

Mobirise 4.6.5 started off great for me but I'm having some weird issues. I went through the forums & didn't see an answer so maybe someone here can help out.My OS is Win 10. I installed the program and created a new site using the Mobirise 4 theme but ran into issues after compressing background images to use in Mobirise blocks. I renamed the background images so I could revert if needed. Everything looked good in Preview mode but after FTP'ing, some backgrounds were missing. I tried editing the pages in question with Mobirise but still no good. I closed the program, restarted the computer and re-opened Mobirise - same problem. I did a fresh install. No good either. After the above issue started, another issue cropped up when cloning pages. Everytime I cloned a page, it looked good in Preview but after FTP'ing, it was a jumbled mess. Even block details beyond the background images were wrong.If you want, take a look at my site (ridethisbike.com). The second SECTION block of the index.html file was supposed to be the "Intro with image" theme but that theme will no longer work properly in the site so I substituted the "Full screen intro" theme for now.Here's a page you can see that's malfunctioning:http://ridethisbike.com/test123.html (a total clusterflub)Also, starting to have a problem adding user created blocks to pages I'm building.What does all this sound like???

Tried your tip. No go.To test your tip, I added the "Intro with image" theme as the 2nd SECTION block in my index.html page, published twice (disabling changes only), changed the filename, uploaded and this is what I got:http://ridethisbike.com/index333.htmlThen I closed/re-opened Mobirise, published twice again (disabling changes only), uploaded and got the same result.

Initially, I concluded the same but I've uploaded all assets several times, have dumped browser cache and forced browser refresh.Please take a look at http://ridethisbike.com/index333.htmlIn the "Intro with Image" theme block at the top of the page, you'll see a large, transparent image of a skeleton.Do you see a background image behind the skeleton?

For whatever reason, only some CSS files were being overwritten. I FTP'd everything fresh and BAM, it's all working perfectly now.From this point on, I'm going to Publish ALL locally (not just new), doing so twice and fresh FTP'ing it all.